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net/sfc/base: add Medford2 head-of-line blocking stats

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These stats are availble on Medford2 DPDK firmware variant
which support equal stride super-buffer Rx mode. RXDP_HLB_IDLE
capability bit is set when the stats are available.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2018-05-03 15:41:19 +01:00 committed by Ferruh Yigit
parent c928f7ca60
commit a9e0e6747d
3 changed files with 25 additions and 0 deletions
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18
drivers/net/sfc/base/ef10_mac.c
View File

@ -544,8 +544,19 @@ ef10_mac_stats_get_mask(
goto fail8;
}
if (encp->enc_hlb_counters) {
const struct efx_mac_stats_range ef10_hlb[] = {
{ EFX_MAC_RXDP_HLB_IDLE, EFX_MAC_RXDP_HLB_TIMEOUT },
};
if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
ef10_hlb, EFX_ARRAY_SIZE(ef10_hlb))) != 0)
goto fail9;
}
return (0);
fail9:
EFSYS_PROBE(fail9);
fail8:
EFSYS_PROBE(fail8);
fail7:
@ -999,6 +1010,13 @@ ef10_mac_stats_update(
EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC]),
&value);
/* Head-of-line blocking */
EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_IDLE, &value);
EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_IDLE]), &value);
EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_TIMEOUT, &value);
EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_TIMEOUT]), &value);
done:
/* Read START generation counter */
EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp));

6
drivers/net/sfc/base/ef10_nic.c
View File

@ -1245,6 +1245,12 @@ ef10_get_datapath_caps(
else
encp->enc_fec_counters = B_FALSE;
/* Check if the firmware provides head-of-line blocking counters */
if (CAP_FLAGS2(req, RXDP_HLB_IDLE))
encp->enc_hlb_counters = B_TRUE;
else
encp->enc_hlb_counters = B_FALSE;
if (CAP_FLAGS1(req, RX_RSS_LIMITED)) {
/* Only one exclusive RSS context is available per port. */
encp->enc_rx_scale_max_exclusive_contexts = 1;

1
drivers/net/sfc/base/efx.h
View File

@ -1296,6 +1296,7 @@ typedef struct efx_nic_cfg_s {
/* Firmware support for extended MAC_STATS buffer */
uint32_t enc_mac_stats_nstats;
boolean_t enc_fec_counters;
boolean_t enc_hlb_counters;
/* Firmware support for "FLAG" and "MARK" filter actions */
boolean_t enc_filter_action_flag_supported;
boolean_t enc_filter_action_mark_supported;